Traits question

[Andreas]

Hello... Was messing around with some traits for me mod today, and I got to the point of adding some of them. What i want to do is to create a number of traits (7), which a family memeber gets one they come to age. I want to be sure that the family member gets one of them, but not more, and I want the chance to be about equal for them. The only way I can imagine is this:
Traits:

;================================================== ======
Trait Trait_One
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait1
        Description Trait1_desc
        EffectsDescription Trait1_effects_desc
        Threshold  1

        Effect X  b

;================================================== ======
Trait Trait_Two
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait2
        Description Trait2_desc
        EffectsDescription Trait2_effects_desc
        Threshold  1

        Effect X  c

;================================================== ======
Trait Trait_Three
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait3
        Description Trait3_desc
        EffectsDescription Trait3_effects_desc
        Threshold  1

        Effect X  d

;================================================== ======
Trait Trait_Four
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait4
        Description Trait4_desc
        EffectsDescription Trait4_effects_desc
        Threshold  1

        Effect X  e

;================================================== ======
Trait Trait_Five
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait5
        Description Trait5_desc
        EffectsDescription Trait5_effects_desc
        Threshold  1

        Effect X  f

;================================================== ======
Trait Trait_Six
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait6
        Description Trait6_desc
        EffectsDescription Trait6_effects_desc
        Threshold  1

        Effect X  g

;================================================== ======
Trait Trait_Seven
    Characters family
    ExcludeCultures barbarian, roman, eastern, hun, nomad

    Level Trait7
        Description Trait7_desc
        EffectsDescription Trait7_effects_desc
        Threshold  1

        Effect X  h

;================================================== ======

Trigggers:

;------------------------------------------
Trigger trigger_one
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and empire_west

Affects Trait_One 1 Chance 15
;------------------------------------------
Trigger trigger_two
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and not Trait Trait_Two >= 1
          and empire_west

Affects Trait_Two 1 Chance 15
;------------------------------------------
Trigger trigger_three
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and not Trait Trait_Two >= 1
          and not Trait Trait_Three >= 1
          and empire_west

Affects Trait_Three 1 Chance 15
;------------------------------------------
Trigger trigger_four
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and not Trait Trait_Two >= 1
          and not Trait Trait_Three >= 1
          and not Trait Trait_Four >= 1
          and empire_west

Affects Trait_Four 1 Chance 15
;------------------------------------------
Trigger trigger_five
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and not Trait Trait_Two >= 1
          and not Trait Trait_Three >= 1
          and not Trait Trait_Four >= 1
          and not Trait Trait_Five >= 1
          and empire_west

Affects Trait_Five 1 Chance 15
;------------------------------------------
Trigger trigger_six
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and not Trait Trait_Two >= 1
          and not Trait Trait_Three >= 1
          and not Trait Trait_Four >= 1
          and not Trait Trait_Five >= 1
          and not Trait Trait_Six >= 1
          and empire_west

Affects Trait_Six 1 Chance 15
;------------------------------------------
Trigger trigger_seven
WhenToTest CharacterComesOfAge

Condition not Trait Trait_One >= 1
          and not Trait Trait_Two >= 1
          and not Trait Trait_Three >= 1
          and not Trait Trait_Four >= 1
          and not Trait Trait_Five >= 1
          and not Trait Trait_Six >= 1
          and not Trait Trait_Seven >= 1
          and empire_west

Affects Trait_Seven 1 Chance 100
;------------------------------------------

Is that the easiest and most efficant way to do it? There is the slight chance that the last on will get the most true hits, and that would be sad but I can see no other way... Can you?

Of course, it would be easier if we could combine trigger for different traits... A simple random 1 to 100, and six if lines and one else would do the trick pretty easy... But we cannot do that, can we